US3827190A - Pipe cutting machine with spark actuated feed control - Google Patents

Pipe cutting machine with spark actuated feed control Download PDF

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Publication number
US3827190A
US3827190A US00363503A US36350373A US3827190A US 3827190 A US3827190 A US 3827190A US 00363503 A US00363503 A US 00363503A US 36350373 A US36350373 A US 36350373A US 3827190 A US3827190 A US 3827190A
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US
United States
Prior art keywords
pipe
cutting machine
grinding wheel
cutting
swing arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00363503A
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English (en)
Inventor
S Moriguchi
M Tamura
Y Saito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Engineering and Shipbuilding Co Ltd
Original Assignee
Mitsui Engineering and Shipbuilding Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsui Engineering and Shipbuilding Co Ltd filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Application granted granted Critical
Publication of US3827190A publication Critical patent/US3827190A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/06—Grinders for cutting-off
    • B24B27/065—Grinders for cutting-off the saw being mounted on a pivoting arm

Definitions

  • ABSTRACT Pipe cutting machine comprising a grinding wheel for cutting a pipe, means for detecting sparks from the grinding wheel or the pipe in cutting operation, and means for reducing the feeding speed of the grinding wheel, when said means is operated by sparks.
  • the present invention relates to a pipe cutting machine provided with a control means for feeding speed otthe gr ding l-V .7
  • feeding speed is not varied between idling and cutting stroke.
  • An object of the present invention is to provide a pipe cutting machine in which the grinding wheel may be rapidly fed in idling stroke for increase the working efficiency.
  • the pipe cutting machine comprises a swing arm provided with a grinding wheel for cutting a pipe, a hydraulic cylinder to rotate said swing arm, valve means for reducing the rotating speed of said swing arm, a photo electric means for detecting sparks from the pipe or the grinding wheel in cutting operation, and means for operating said valve means to reduce the speed of the swing arm to a cutting speed when said photo electric means being actuated by sparks.
  • FIG. 1 is a side view of a pipe cutting machine in accordance with the present invention.
  • FIG. 2 is a diagrammatical view showing operation thereof.
  • FIG. 1 a pipe 1 to be cut is supported by a plurality of rollers 3 provided on a bed 2 and arranged along the pipe and is held by pressure rollers 3a.
  • a grind wheel arm 4 is pivotally provided on the bracket 5 by the pin 6.
  • a grinding wheel 8 is rotatably provided on the end of the arm 4 by a shaft 7 and adapted to be rotated by a belt 12 engaged with a pulley 9 on the shaft 7 and a pulley 11 on the shaft of the motor 10.
  • An air cylinder 13 is connected on the bed 2 by a pin 14 and the piston rod 15 is connected to the end of the arm 4 by a pin 16.
  • a braking oil hydraulic cylinder 17 is secured to the air cylinder 13 and the piston rod 18 is connected to the piston rod 15 of the air cylinder by a member 18 thereby both piston rods can be simultaneously moved.
  • Opposite chambers of the braking cylinder 17 are connected to each other through flow metering valves 20 and 21 and a solenoid controlled valve 22.
  • a photo transistor 23 is provided on the bracket 5 to be directed to the pipe 1.
  • FIG. 2 shows the idling stroke, more particularly, chambers of the braking cylinder 17 are communicated through lower resistance valve 20. Therefore, the arm 4 is quickly rotated in the counter-clockwise direction by operation of the air cylinder 13.
  • the sparks actuate the photo transistor 23 to produce an electrical signal
  • the electrical signal is transmittedto the solenoid controlled valve 22 through an amplifier 24, whereby the solenoid controlled valve is operated to change the passages to connect the higher resistance valve 21 to the chambers of the braking cylinder 17.
  • the rotating speed of the arm 4 is reduced to a cutting speed.
  • the solenoid controlled valve 22 is operated by a not shown switch, so that the lower resistance valve 20 is connected to the braking cylinder, thus the arm 4 is quickly returned.
  • the means may be arranged to be operated without the braking cylinder 17 by providing a flow control means for the air cylinder 13.
  • a pipe cutting machine comprising a swing arm provided with a grinding wheel for cutting a pipe, a hydraulic cylinder to rotate said swing arm, valve means for reducing the rotating speed of said swing arm, a photo electric means for detecting sparks from the pipe or the grinding wheel in cutting operation, and means for operating said valve means to reduce the speed of the swing arm to a cutting speed when said photo electric means is being actuated by sparks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Sawing (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
US00363503A 1972-05-30 1973-05-24 Pipe cutting machine with spark actuated feed control Expired - Lifetime US3827190A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47054204A JPS4910480A (xx) 1972-05-30 1972-05-30

Publications (1)

Publication Number Publication Date
US3827190A true US3827190A (en) 1974-08-06

Family

ID=12964008

Family Applications (1)

Application Number Title Priority Date Filing Date
US00363503A Expired - Lifetime US3827190A (en) 1972-05-30 1973-05-24 Pipe cutting machine with spark actuated feed control

Country Status (11)

Country Link
US (1) US3827190A (xx)
JP (1) JPS4910480A (xx)
BE (1) BE800157A (xx)
BR (1) BR7303988D0 (xx)
CA (1) CA977150A (xx)
DE (1) DE2327439A1 (xx)
ES (1) ES415201A1 (xx)
FR (1) FR2186866A5 (xx)
GB (1) GB1432177A (xx)
IT (1) IT988737B (xx)
NL (1) NL7307550A (xx)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001980A (en) * 1972-11-17 1977-01-11 Ambar Investment Inc. Grinding machine
US4368596A (en) * 1980-02-29 1983-01-18 Toyoda Koki Kabushiki Kaisha Feed safety apparatus for movable member
US4418499A (en) * 1979-11-01 1983-12-06 Shinko Machinery Works Inc. Cutter grinding machine
US4502253A (en) * 1982-08-12 1985-03-05 Magnaflux Corporation Surface treating and testing apparatus
US4523409A (en) * 1983-05-19 1985-06-18 The Charles Stark Draper Laboratory, Inc. Automatic contour grinding system
CN102830031A (zh) * 2012-09-06 2012-12-19 廊坊盛森磨具有限公司 砂轮切割片性能测试机
CN104097225A (zh) * 2014-07-24 2014-10-15 蚌埠新奥燃气发展有限公司 塑料圆管切割装置
CN105856039A (zh) * 2016-06-13 2016-08-17 浙江中达特钢股份有限公司 一种大型钢管切割机
CN108081097A (zh) * 2017-11-08 2018-05-29 闽南理工学院 一种可自动夹紧阻挡的砂轮切割机
CN111716107A (zh) * 2020-07-06 2020-09-29 王祎颖 一种切割时自动夹紧的防变形铝合金管切割机
CN112454031A (zh) * 2020-11-24 2021-03-09 湖南豪镨博德新材料科技有限公司 一种金属材料的磨削加工装置
CN112536681A (zh) * 2020-12-04 2021-03-23 杭州绿微科技有限公司 载荷感知导向液压阀杆表面处理设备

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4094102A (en) * 1977-04-18 1978-06-13 Lauze Robert Lavern Oscillating cut-off saw
CH652334A5 (fr) * 1983-05-13 1985-11-15 Liotte Rep Etrangenes Ets Machine a rectifier.
CN111702644A (zh) * 2020-07-03 2020-09-25 南京工业职业技术学院 一种棒料切割机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693057A (en) * 1954-03-30 1954-11-02 Tabor Mfg Co Cutoff machine
US2787092A (en) * 1953-03-30 1957-04-02 Smith Bros & Webb Cutting-off machine
US3113405A (en) * 1961-08-11 1963-12-10 Norton Co Apparatus for maintaining constant peripheral speed of a grinding wheel to compensatefor wheel wear
US3656261A (en) * 1970-08-28 1972-04-18 Everett Ind Inc Cutting device control

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2787092A (en) * 1953-03-30 1957-04-02 Smith Bros & Webb Cutting-off machine
US2693057A (en) * 1954-03-30 1954-11-02 Tabor Mfg Co Cutoff machine
US3113405A (en) * 1961-08-11 1963-12-10 Norton Co Apparatus for maintaining constant peripheral speed of a grinding wheel to compensatefor wheel wear
US3656261A (en) * 1970-08-28 1972-04-18 Everett Ind Inc Cutting device control

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001980A (en) * 1972-11-17 1977-01-11 Ambar Investment Inc. Grinding machine
US4418499A (en) * 1979-11-01 1983-12-06 Shinko Machinery Works Inc. Cutter grinding machine
US4368596A (en) * 1980-02-29 1983-01-18 Toyoda Koki Kabushiki Kaisha Feed safety apparatus for movable member
US4502253A (en) * 1982-08-12 1985-03-05 Magnaflux Corporation Surface treating and testing apparatus
US4523409A (en) * 1983-05-19 1985-06-18 The Charles Stark Draper Laboratory, Inc. Automatic contour grinding system
CN102830031A (zh) * 2012-09-06 2012-12-19 廊坊盛森磨具有限公司 砂轮切割片性能测试机
CN104097225A (zh) * 2014-07-24 2014-10-15 蚌埠新奥燃气发展有限公司 塑料圆管切割装置
CN105856039A (zh) * 2016-06-13 2016-08-17 浙江中达特钢股份有限公司 一种大型钢管切割机
CN105856039B (zh) * 2016-06-13 2018-01-19 浙江中达特钢股份有限公司 一种大型钢管切割机
CN108081097A (zh) * 2017-11-08 2018-05-29 闽南理工学院 一种可自动夹紧阻挡的砂轮切割机
CN111716107A (zh) * 2020-07-06 2020-09-29 王祎颖 一种切割时自动夹紧的防变形铝合金管切割机
CN112454031A (zh) * 2020-11-24 2021-03-09 湖南豪镨博德新材料科技有限公司 一种金属材料的磨削加工装置
CN112454031B (zh) * 2020-11-24 2022-12-09 洛阳聚晶钨钼科技有限公司 一种金属材料的磨削加工装置
CN112536681A (zh) * 2020-12-04 2021-03-23 杭州绿微科技有限公司 载荷感知导向液压阀杆表面处理设备

Also Published As

Publication number Publication date
IT988737B (it) 1975-04-30
FR2186866A5 (xx) 1974-01-11
DE2327439A1 (de) 1973-12-06
NL7307550A (xx) 1973-12-04
BR7303988D0 (pt) 1974-06-27
ES415201A1 (es) 1976-02-01
JPS4910480A (xx) 1974-01-29
CA977150A (en) 1975-11-04
GB1432177A (en) 1976-04-14
BE800157A (fr) 1973-09-17

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